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How to sort mongodb with pymongo
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305
.sort(), in pymongo, takes key and direction as parameters.
So if you want to sort by, let's s...
Pandas DataFrame Groupby two columns and get counts
...In [56]: df.groupby(['col5','col2']).size().reset_index().groupby('col2')[[0]].max()
Out[56]:
0
col2
A 3
B 2
C 1
D 3
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How is the default submit button on an HTML form determined?
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answered May 29 '09 at 10:41
Andrzej DoyleAndrzej Doyle
95.5k2929 gold badges181181 silver badges224224 bronze badges
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Capture keyboardinterrupt in Python without try-except
...gnal_handler(signal, frame):
print('You pressed Ctrl+C!')
sys.exit(0)
signal.signal(signal.SIGINT, signal_handler)
print('Press Ctrl+C')
forever = threading.Event()
forever.wait()
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Why is a combiner needed for reduce method that converts type in java 8
...ch; int cannot be converted to java.lang.String. Actually, I think passing 0 as the identity value is also wrong here, since a String is expected (T).
Also note that this version of reduce processes a stream of Ts and returns a T, so you can't use it to reduce a stream of String to an int.
The thr...
Are there legitimate uses for JavaScript's “with” statement?
...osure in a loop is a common task where this can lead to errors:
for (var i=0; i<3; ++i)
{
var num = i;
setTimeout(function() { alert(num); }, 10);
}
Because the for loop does not introduce a new scope, the same num - with a value of 2 - will be shared by all three functions.
A new scope: l...
Does Android keep the .apk files? if so where?
...ata/app");
String[] files = appsDir.list();
for (int i = 0 ; i < files.length ; i++ ) {
Log.d(TAG, "File: "+files[i]);
}
}
It does lists the apks in my rooted htc magic and in the emu.
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How do I sort strings alphabetically while accounting for value when a string is numeric?
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104
Pass a custom comparer into OrderBy. Enumerable.OrderBy will let you specify any comparer you l...
Facebook Callback appends '#_=_' to Return URL
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edited Oct 16 '13 at 21:07
answered Sep 4 '11 at 7:14
Rya...